Ngo Quoc Luan * , Ngo Khac Khong Minh , Nguyen Phuc Dam , Tiet Bao Tinh , Tran Thi Tuyet Hoa and Nguyen Trong Tuan

* Corresponding author (

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Four known methoxyflavones, namely 5-hydroxy-7-methoxyflavone (1), 5-hydroxy-3,7-dimethoxyflavone (2), 5-hydroxy-6,7-dimethoxyflavone (3) and 5-hydroxy-3,7,8-trimethoxyflavone (4) were isolated from acetone extracts of the leaves of Muntingia calabura L. Their structures were elucidated by modern spectra including UV, IR, ESI-HR-MS, 1D-NMR, 2D-NMR and by comparison with published data.
Keywords: Muntingia calabura L., methoxyflavones

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